[FFmpeg-user] Quantify Video Quality

[Andrey Utkin]

2012/2/28 Jim Worrall <coniophora at gmail.com>:
> It is hard to imagine that the quality of the final transcoded videos
> could be improved by going from an uncompressed file through some
> (unspecified) codecs in an AVI first.  I would assume that the final
> file made directly from the YUV is better.
>
> To compare the quality, I would just look at a few samples.

As i got the idea, the guy asks how can he calculate Signal to Noise
Ratio in derived files.

-- 
Andrey Utkin